<button class="button">
  Button
</button>
<style>
/* From Uiverse.io by deepak16375 - Tags: button, animated */
.button {
  padding: .9rem 1.5rem;
  border: .2rem solid #443;
  border-radius: 95% 4% 97% 5% / 4% 94% 3% 95%;
  color: #443;
  background: none;
  cursor: pointer;
  margin-top: 1rem;
  font-size: 1.7rem;
  transition: all .2s linear;
}

.button:hover {
  border-radius: 4% 95% 6% 95% / 95% 4% 92% 5%;
  border: .2rem dashed #443;
}

</style>
